Fohnsee, Sengsee and Groβer Ostersee Loop viia Osterseen Wanderweg 25

Starting near Weilheim-Schongau in Germany, this 11 km (approximately 6.8 miles) loop trail offers a delightful mix of natural beauty and moderate physical challenge. With an elevation gain of around 100 meters (328 feet), it is suitable for hikers with a medium level of experience. The trailhead is conveniently accessible by both car and public transport. If driving, you can park near the Osterseen Nature Reserve. For those using public transport, take a train to Weilheim and then a local bus towards Iffeldorf, getting off at the Osterseen stop.

### Trail Overview

The Fohnsee, Sengsee, and Großer Ostersee Loop via Osterseen Wanderweg 25 takes you through a picturesque landscape dotted with serene lakes and lush forests. The trail is well-marked, but it's always a good idea to have a navigation tool like HiiKER for added assurance.

### Key Landmarks and Natural Features

Fohnsee Starting from the trailhead, you will first encounter Fohnsee, a tranquil lake surrounded by dense woodland. This is a great spot for birdwatching, as the area is home to various species of waterfowl. The trail around Fohnsee is relatively flat, making it an easy start to your hike.

Sengsee Continuing on, you will reach Sengsee at around the 4 km (2.5 miles) mark. This lake is slightly smaller but equally captivating. The path here becomes a bit more undulating, offering a moderate challenge. Keep an eye out for wildflowers that bloom in abundance during the spring and summer months.

Großer Ostersee At approximately 7 km (4.3 miles) into the hike, you will arrive at Großer Ostersee, the largest of the lakes on this loop. The views here are breathtaking, with clear waters reflecting the surrounding trees and sky. This is an ideal spot for a rest and perhaps a picnic. The elevation gain around this area is more noticeable but still manageable for most hikers.

### Historical Significance

The Osterseen region has a rich history dating back to the Ice Age, when glaciers carved out these beautiful lakes. The area has been a protected nature reserve since 1981, ensuring the preservation of its unique ecosystem. Historical records also indicate that the region was inhabited by early settlers, and you might come across some ancient stone structures along the way.

### Wildlife and Flora

The trail is a haven for wildlife enthusiasts. Deer, foxes, and various bird species are commonly spotted. The lakes themselves are teeming with fish and amphibians. The flora is equally diverse, with oak, beech, and pine trees dominating the landscape. Seasonal flowers add a splash of color, making the hike visually rewarding.

### Practical Information

The trail is open year-round, but the best times to visit are during spring and autumn when the weather is mild, and the foliage is at its most vibrant. Make sure to wear sturdy hiking boots, as some sections can be muddy, especially after rain. Carry enough water and snacks, as there are limited facilities along the route.

Using HiiKER for navigation will help you stay on track and provide additional information about the trail as you hike. Enjoy the natural beauty and historical richness of the Fohnsee, Sengsee, and Großer Ostersee Loop via Osterseen Wanderweg 25.